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प्रश्न
Fill in the blank
An ion which has a positive charge is called a ..................
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उत्तर
An ion which has a positive charge is called a cation .
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संबंधित प्रश्न
What are the atomic numbers of elements whose outermost electrons is represented by 3p5?
Fill in the Blank of the Following Statement :
An atom has atomic mass number 23 and atomic number 11. The atom has .................... electrons.
Match the atomic numbers 4,8,10,15 and 19 with the following:
Element with 6 valence electrons
The diagram represents an isotope of hydrogen [H]. Answer the following:

Atomic no. = 1
Mass no. = 1
If an isotope of ‘H’ has mass no. = 3, how many neutrons does it have.
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Elements X, Y, Z have atomic numbers 6, 9 and 12 respectively. Which one:
- forms anion – negative ion;
- forms cation – positive ion;
- has 4 electrons in the outermost orbit. [Y, Z, X]
Differentiate mass number from atomic number.
The particles that make up the atom are called ______ particles.
A ______ number describes a specific aspect of an electron.
